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https://github.com/gnh1201/welsonjs.git
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59 lines
2.0 KiB
JavaScript
59 lines
2.0 KiB
JavaScript
/*!
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{
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"name": "HTML5 Audio Element",
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"property": "audio",
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"caniuse": "audio",
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"tags": ["html5", "audio", "media"],
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"notes": [{
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"name": "MDN Docs",
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"href": "https://developer.mozilla.org/En/Media_formats_supported_by_the_audio_and_video_elements"
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}]
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}
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!*/
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/* DOC
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Detects support of the audio element, as well as testing what types of content it supports.
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Subproperties are provided to describe support for `ogg`, `mp3`,`opus`, `wav` and `m4a` formats, e.g.:
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```javascript
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Modernizr.audio // true
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Modernizr.audio.ogg // 'probably'
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```
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*/
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define(['Modernizr', 'createElement'], function(Modernizr, createElement) {
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// Codec values from : github.com/NielsLeenheer/html5test/blob/9106a8/index.html#L845
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// thx to NielsLeenheer and zcorpan
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// Note: in some older browsers, "no" was a return value instead of empty string.
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// It was live in FF3.5.0 and 3.5.1, but fixed in 3.5.2
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// It was also live in Safari 4.0.0 - 4.0.4, but fixed in 4.0.5
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(function() {
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var elem = createElement('audio');
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Modernizr.addTest('audio', function() {
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var bool = false;
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try {
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bool = !!elem.canPlayType;
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if (bool) {
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bool = new Boolean(bool);
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}
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} catch (e) {}
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return bool;
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});
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// IE9 Running on Windows Server SKU can cause an exception to be thrown, bug #224
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try {
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if (!!elem.canPlayType) {
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Modernizr.addTest('audio.ogg', elem.canPlayType('audio/ogg; codecs="vorbis"').replace(/^no$/, ''));
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Modernizr.addTest('audio.mp3', elem.canPlayType('audio/mpeg; codecs="mp3"').replace(/^no$/, ''));
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Modernizr.addTest('audio.opus', elem.canPlayType('audio/ogg; codecs="opus"') ||
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elem.canPlayType('audio/webm; codecs="opus"').replace(/^no$/, ''));
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Modernizr.addTest('audio.wav', elem.canPlayType('audio/wav; codecs="1"').replace(/^no$/, ''));
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Modernizr.addTest('audio.m4a', (elem.canPlayType('audio/x-m4a;') ||
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elem.canPlayType('audio/aac;')).replace(/^no$/, ''));
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}
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} catch (e) {}
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})();
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});
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